335w Silver Poly Manual

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2.3.1 Fixation with bolts
The frame of each module has 8 mounting holes (Length* Width: 14mm*9mm) used to
secure the modules to support structure. You can use the four symmetry holes close to the
inner side on module frame. If excessive wind or snow load are expected, you must use all
the eight mounting holes. The module frame must be attached to a mounting rail using M8
corrosion-proof bolts together with spring washers and flat washers in eight symmetrical
locations on the PV module. The applied torque value should be big enough to fix the
modules steadily. The reference value for M8 bolt is 16~20N*m. As to special support system
or special installation requirement, please reconfirm with the support‟s supplier for the torque
value. Please find detailed mounting information in the below illustration.
The following is M8 stainless steel mounting hardware.
*N. The installation instructions shall specify that the modules have been evaluated by UL
for bolting mounting method using the 8provided mounting holes in the frame with a torque of
16~20Nm. The following M8 stainless steel mounting hardware should be included in the
installation instructions:
For eight 14x9 holes, mounting hardware are shown as below:
Module
Mounting hardware configuration
Hardware
Material
Size
Number provided
Group
1~Group 8
Bolt
Stainless steel
M8
4
Spring washer
Stainless steel
M8
8
Nut
Stainless steel
M8
4
*Alternate Mounting Method – bolting mounting method using the 12provided mounting
holes in the frame with a torque of 16~20Nm. The following stainless steel mounting
hardware should be included in the installation instructions
For eight 14x9 holes, mounting hardware are shown as below:
Module
Mounting hardware configuration
Hardware
Material
Size
Number provided
Group
1~Group 8
Bolt
Stainless steel
M8
4
Spring washer
Stainless steel
M8
8
Nut
Stainless steel
M8
4
For four 10x7 holes, mounting hardware are shown as below:
Module
Mounting hardware configuration
Hardware
Material
Size
Number provided
Group
1~Group 8
Bolt
Stainless steel
M6
4
Spring washer
Stainless steel
M6
8
Nut
Stainless steel
M6
4